Check the listing for details. Dual Differential Gas Pressure Tester Manometer with Data Storage Function. Condition: New. Listed at 64.99 USD. This handheld manometer is a professional instrument designed to measure pressure & differential pressure in the ranges of ±2.999 Psi. It has 12 unit selection with high measurement accuracy.Application: This product is widely used in natural gas pipelines, air-conditioning refrigeration and ventilation systems, mechanical hydraulics, plastic molding, ceramic products, biopharmaceutical molding, mining area pressure detection, petrochemical refining, gas, liquid, and production industrial equipment pressure detection.Features:Imported pressure sensorHigh precision, High Range and High resolutionLarge screen with Temperature and Pressure value displayHigh precision ADC and low power MCU designedDual channel and can simultaneously detect the pressure difference between two detection ports (P1-P2)Digital differential pressure gauge can also be used for temperature measurementSwitchable temperature unit (°C/°F)Data HOLD / STORAGE / SEARCH functionMAX / MIN Data ModeAutomatic shutdown functionBacklight functionLow Battery IndicatorSpecifications:12 Unit of Measurement: Psi, kg-cm², Ozin², bar, mbar, kPa, inHg, mmHg, inH2O, ftH2O, cmH2O, PAAccuracy: ±0.3% FSORepeatability: ±0.2% (MAX ±0.5%FSO)Linearity/Hysteresis: ±0.29%FSOMeasurement rate: 0.5sData Storage: 100 groupsLow Battery Indicator: 6.8V show low battery symbolAutomatic Shutdown Condition: No operation for 15 minPositive Pressure Range Alert: Err0Over Negative Range Alert: Err1Working Temperature: 0~50 °C (32~122 °F)Power Supply: 3.7V 110mAh Rechargeable LI BatterySize: approx. 164 × 71 × 35 mmWeight: approx. 300gmsSet Includes:1 x Manometer2 x Plastic Hose1 x Metal Connector1 x USB Wire1 x Carry PouchEnglish Instruction ManualStandard Factory Packaging